Improvement



SMITH.

DAMPER FOR STQVEPIPES.

Patented Nov.. 8, 3&864.

l fnvzZr/f.- QLZ/M 6. SM1( W @ma Man/wv UNITED STATES PATENT OFFICE.

GILBERT E. SMITH, OF RACINE, WISCONSIN.

IMPROVEMENT IN DAMPERS FOR. STOVE-PIPES.

Specification forming part of Letters Patent No. 44,98 l ,dated November8, 1864.

To all whom it may concern.:

Beit known that 1, GILBERT E. SMITH, of Racine, in the county of Racinea-nd State of Wisconsin, hare invented a new and useful Improvement inDampers or Heat-Controllers; and I do hereby declare the following to bea full, clear, and exact description thereof, rtfirenee being had to thedrawings hereunto annexed and the letters and figures marked thereon,which form part of this specification.

In said drawings, Figure 1 represents a top view of my invention; Fig.2, a side view of the same; and Fig. 3 is a view otl the lower sideofthe same, or the opposite side ot' Fig. l.

The nature of luy-invention consists inthe employment of a slide orvalve in connection wlth two parallel disks. which are provided With oneor more openings in each arranged in such a manner with respect to eachother that the current of heat is broken or deflected and made to passoblique] y between said disks and so imparta greater degree oi' heatthan would otherwise be obtained, the slide or valve l aI-.oresaid beingarranged upon one of said disks', so as to regulate or control the heatperfectly by graduating the openings in said same with particulari ty,.reference being made to the aforesaid drawings-'- A represents thestove-pipe in which my invention is intended to be placed, and B and Crepresent two disks or circular plates whose diameter is a trifle lessthan the interior di- 1` ameter of the pipe. These circular plates B-Gare arranged at a short distance apart and connected by means of theblocks E. This device is provided with the journals c a., whichare'supported in suitable bearings in the pipe A, allowing a freerevolution to the damper, which is easily effected by means of thehandle F. The disk or plate B is provided with a central opening, whichmay be opened or closed by means of the slide or valve D, which slidesin grooves formed'by means ofthe cleats b b. The slide D is regulated oradjusted by 'means of the rod d, attached thereto, which slides-in thejournal a freely, having a longi- From the position shown in Fig. 2 thedamper can be gradually closed, gradually diminishing the heat thatescapes until it is y confined almost entirely, as when' in the positionshown in Figs. 1 and.v Should the draft be checked in this position, theslide D can be drawn and adjusted until the amount of heat is regulatedto the point or degree desired.

What I claim as new, and desire to secure The combination of the twocircular plates B U, provided with the openings c c, and the centralopening in B., with the slide D or its equivalent, and the rod d,arranged. and operating as shown and described.

i GILBERT E. SMITH. .Witnessesz s W. E. MAUS,

L. L. CoBURN.

